Quote Originally Posted by aalomon View Post
I am curios then, why the switch to aspen? If kiln drying solves the pine issue, why doesnt it affect cedar (Im really asking). This is the article that I was pointed to when the pine question came up

http://www.bio.davidson.edu/Courses/...S%20ON%20LIVER

It talks about the effects of pine bedding on captive mice. It showed higher immune system activity, their livers were enlarged, reproduction rates decreased and they showed a preference of any bedding over pine when given the opportunity. I know these are mice, but many of the cedar studies were also conducted on mammals.

Now, I will admit that these are older studies, does anyone have newer studies showing there is a change?
That "study" has been discussed, dissected and essentially debunked. Much of the evidence was anecdotal, not directly related to bedding and rodents (but for example humans and sawmills) and several articles were soon written that dissected the claims point by point.

It's been covered numerous times on several forums. The article does nothing but highlight the folly of referencing shoddy and specious studies in order to make a point.